Transcript for Knife From O.J. Simpson Property Given to LAPD, Police Say

Within the last month LE PD became aware of an item that was allegedly. Recovered. By a citizen. At the Rockingham. Property. Possibly during the demolition. The site. We need to bet that we still don't know if that's an accurate account of how this item came into our our possession. The actual item is described as a night. I'm not going to go into the description of the night because that could be germane to determining whether or not. This actual. Piece of evidence is in fact evidence swords just days. Facsimile. Or made up story so we need to look into that robbery homicide is going to look into that. So what I can tell you set the story as it's told to us by the personally received it from. And the person that we received this night from is a retired LAPD officer who retired. Back in the late ninety's. He was a motor officer. And at the time according to get out. He was working an off duty which is. He was working a movie job. Which a lot of our officers do on an off duty bases as well as our retired officers OI do not know whether he was retired. At the time that he allegedly received this item. From the person who claim they found it on the property or whether he was still in back to LAPD officer and then retired sometime after that. So we are looking into that. The bottom line is that. With all cases that remain open such as the OJ Simpson another murder cases of robbery cases a less there's an actual arrest or conviction. To prove that we have actually closed the case the cases remain open. That is the where we are with the OJ Simpson case and I shouldn't say the OJ Simpson cases this is there that Nicole Brown. Cases double homicide that is still open and ongoing. So the investigators will continue to look at this. That item has been recovered by robbery homicide investigators. It is being treated as we would all evidence so it has been submitted to our our lab. They are going to study it and examine it wore all forensics. Including sore Knology and DNA. And hair samples and that is ongoing as we speak.

This transcript has been automatically generated and may not be 100% accurate.

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